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    ⚠️ Important | Libfredo 15.6b introduces important bugfixes for Fredo's Extensions Update

    De-Tripling (De-Triangularization)

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    • K Offline
      Kanastrous
      last edited by

      Sometimes one winds up with a model (frequently imported)which contains a large number of unnecessary triangular polys (for example a flat plane which needs be defined only by its edges but nonetheless is subdivided into many polygons across its face).

      Does anyone know of an automated tool that can analyze a model, and "de-triple" (combine together into one flat poly) polygons that are unnecessarily subdivided?

      thanks,

      karl

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      • Dave RD Offline
        Dave R
        last edited by

        ThomThom's CleanUp would be one option.

        Etaoin Shrdlu

        %

        (THERE'S NO PLACE LIKE)

        G28 X0.0 Y0.0 Z0.0

        M30

        %

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        • xiombargX Offline
          xiombarg
          last edited by

          If erasing the triangulation lines also results in erasing geometry (which will mean that cleanup won't get rid of those lines) then do this:

          1- Use the Axes tool and set it to the plane's surface.
          2- Select the entire planar surface along with all triangulation lines.
          3- Use thomthom's Vertex Tools ($20) gizmo to scale the surface on the "z" plane to zero. (The "z" plane is the perpendicular plane to the surface).
          4- Erase lines with eraser.

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          • xiombargX Offline
            xiombarg
            last edited by

            I should also mention that you can use the above directions to flatten any uneven surface or make any selected geometry flatten to a single perfectly flat plane.

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            • Bob JamesB Offline
              Bob James
              last edited by

              Artisan has an option to decrease the the amount of triangles.

              i7-4930K 3.4Ghz, 2x GTX780 6GB, 32GB DDR3-1600 ECC, OCZ Vertex 4 500GB, WD Black 3TB, 32TB NAS, 4x 27" Monitors, SpaceMouse Pro, X-keys XK-60

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              • K Offline
                Kanastrous
                last edited by

                Tried installing Cleanup but weirdly enough while it shows up in the Plugins Manager, it's nowhere to be found on any menu.

                Xiombarg - thanks for the tip. Also, great choice of screen name.

                Bob James - I use Artisan but unfortunately its polygon reduction facility leaves lots of triples and distorts geometry too much, at the level of cleanup I need to perform.

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                • TIGT Online
                  TIG Moderator
                  last edited by

                  Have you Activate the CleanUp Extension ?
                  Did you also install TT_Lib it needs ??

                  TIG

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                  • K Offline
                    Kanastrous
                    last edited by

                    ...and there it is. Always nice when someone points you in the right direction. Thanks!

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